there are a few threads on them in the 80 section on IH8MUD. Reviews have been positive from what I've read. They are $$$ though. If it were not for that they would be high on my list of future daily driving tires.

For the money consider the Nitto Terra Grapplers. I and many others have been happy with them as an AT tire.

I put a set of 255/85/16's on the wifes 07 runner. Love them for what they are, a bit noisy, great traction in the snow and ice. We did get studs for our road up in Sunshine Canyon. Handle well, Balanced well. Nice looking tire. No negatives in my book.
On mud several people have them as well on their 80's. May want to look at those threads as well.
Robbie